Change the unix time to be in seconds and not miliseconds

Breeze/src/Breeze.Wallet/JsonConverters/DateTimeOffsetConverter.cs

@@ -18,13 +18,13 @@ namespace Breeze.Wallet.JsonConverters
         /// <inheritdoc />
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
-            return DateTimeOffset.FromUnixTimeMilliseconds(long.Parse((string)reader.Value));            
+            return DateTimeOffset.FromUnixTimeSeconds(long.Parse((string)reader.Value));            
         }
 
         /// <inheritdoc />
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {            
-            writer.WriteValue(((DateTimeOffset)value).ToUnixTimeMilliseconds().ToString());
+            writer.WriteValue(((DateTimeOffset)value).ToUnixTimeSeconds().ToString());
         }
     }
 }

Breeze/src/Breeze.Wallet/WalletManager.cs

@@ -513,7 +513,7 @@ namespace Breeze.Wallet
                     Amount = amount,
                     BlockHeight = blockHeight,
                     Id = transactionHash,
-                    CreationTime = DateTimeOffset.FromUnixTimeMilliseconds(blockTime ?? time),
+                    CreationTime = DateTimeOffset.FromUnixTimeSeconds(blockTime ?? time),
                     Index = index
                 };
                 trans.Add(newTransaction);
@@ -558,7 +558,7 @@ namespace Breeze.Wallet
                 // update the block time
                 if (blockTime != null)
                 {
-                    foundTransaction.CreationTime = DateTimeOffset.FromUnixTimeMilliseconds(blockTime.Value);
+                    foundTransaction.CreationTime = DateTimeOffset.FromUnixTimeSeconds(blockTime.Value);
                 }                
             }